president obama took aim at cutting funds to pbs, the home to big bird. that's less than $100 million a year, just a fraction of the overall federal budget. >> thank goodness somebody's finally cracking down on big bird! who knew that he was responsible for all these deficits? elmo's got to watch out. >> reporter: meanwhile, a past presidential nominee, former vice president al gore, who had his own debate struggles, offered this unusual explanation for mr. obama's uninspired performance, blaming the high altitude in denver. >> obama arrived in denver just a few hours before the debate started. romney did his debate prep in denver. when you go to 5,000 feet -- >> exactly. >> -- and you only have a few hours to adjust -- >> that's interesting. >> -- i don't know. >> reporter: after hearing those comments and being asked about them last night mitt romney laughed al gore's answer off. after virginia, savannah, the president will head off to the battleground state of ohio and mitt romney goes to florida where he campaigns this weekend, the president ultimatel